Update boards for Expansion and Retention groups

Why is this change being made?

To provide a complete view of workflow for Expansion and Retention groups across multiple projects and disciplines.

How will this merge request impact page speed?

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what